What is 2/3 equivalent to?

The parabola x = y² - 9 opens: a.)up b.)down c.) right d.)left

Solve -2(4y + 6) = 52. 5 -5 8 -8 and !

According to a study conducted in 2015, 18% of shoppers said that they prefer to buy generic instead of name-brand products. suppose that in a recent sample of 1500 shoppers, 315 stated that they prefer to buy generic instead of name-brand products. at a 5% significance level, can you conclude that the proportion of all shoppers who currently prefer to buy generic instead of name-brand products is higher than .18? use both the p-value and the critical-value approaches.